this derivation will be built:
  /nix/store/cwr85slqckh99qirn8a0fn15mr5kzxmc-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/cwr85slqckh99qirn8a0fn15mr5kzxmc-bcachefs-module-7.0.0-29-generic.drv'...